Unless specified otherwise in your service contract, Tierra accepts credit and debit card payment through PayPal. PayPal currently accepts Visa, MasterCard, Discover and American Express.
Please note that you do not have to have a PayPal account, nor do you have to create one, to use this service. After you click 'Buy Now' above you'll be directed to the PayPal website where you simply enter the amount to be paid and hit 'Continue' button. The next screen will give you the option to Pay with Debit or Credit Card.
Thank you for working with Tierra!